/*******************************************************************************************
 * Copyright (c) 2006-2009 Alex Robson, Rob Simmons, Craig Israel, and Rachel Twyford
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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using Nvigorate.Extensions;
using Nvigorate.Relational.Mapping.Interface;

namespace Nvigorate.Relational.Mapping.Fluent
{
    public class FluentOneToMany<TSubject, TRelative> : IFluentRelationship
    {
        #region Fields

        private Relationship Relationship { get; set; }
        private string Relative { get { return RelativeType.GetCleanAssemblyQualifiedTypeName(); } }
        private Type RelativeType { get { return typeof(TRelative); } }
        private string RelativeProperty { get; set; }
        private string Subject { get { return SubjectType.GetCleanAssemblyQualifiedTypeName(); } }
        private Type SubjectType { get { return typeof (TSubject); } }
        private Dictionary<string, string> Constraints { get; set; }
        private IFluentMap Map { get; set; }

        #endregion
        
        #region Public Methods

        /// <summary>
        /// Builds a OneToManyRelationship object to define how types relate in the domain
        /// </summary>
        /// <returns>A OneToManyRelationship object for use in the BindingMap</returns>
        public ITargetRelationship GetRelationship()
        {
            var relationship = new OneToManyRelationship()
                                   {
                                       Relationship = this.Relationship,
                                       Relative = this.Relative,
                                       RelativeType = this.RelativeType,
                                       RelativeProperty = this.RelativeProperty,
                                       Subject = this.Subject,
                                       SubjectType = this.SubjectType,
                                   };
            Constraints.ForEach(p => relationship.Constraints.Add(p.Key, p.Value));
            return relationship;
        }

        /// <summary>
        /// Defines a foreign key pair
        /// </summary>
        /// <typeparam name="TSubjectProperty">The subject property (subject is the current mapped type)</typeparam>
        /// <typeparam name="TRelativeProperty">The relative property</typeparam>
        /// <param name="parentKey">The expression to select the subject property</param>
        /// <param name="childKey">The expression to select the relative property</param>
        /// <returns></returns>
        public FluentOneToMany<TSubject, TRelative> ForeignKey<TSubjectProperty, TRelativeProperty>(Expression<Func<TSubject, TSubjectProperty>> parentKey, Expression<Func<TRelative, TRelativeProperty>> childKey)
        {
            var parentExpression = parentKey.Body as MemberExpression;
            var childExpression = childKey.Body as MemberExpression;

            Constraints.Add(parentExpression.GetPropertyPath().BuildString("."), childExpression.GetPropertyPath().BuildString("."));
            return this;
        }

        #endregion

        public FluentOneToMany(string property, Relationship relationship)
        {
            RelativeProperty = property;
            Relationship = relationship;
            Constraints = new Dictionary<string, string>();
        }
    }
}